Features Easy of use and compact size With 3 5mm external earpiece jack With 360swivel clip Coil cable with in 4mm diameter and reinforced 2000D Specification Weight 100g 3 53ozCable length About 50cm 19 69in undrawn Dimension 36mmSound Pressure Level 1203dB 1KHzImpedance 8Related Power 0 5WMax Power 1WMic Specification Dimension 6 0 x0 5mmSensitivity 38dB2Db 1KHzImpedance 2 2KRelated current 300mA Compatible RadiosTypeModelRetevisH777RT1 RT2 RT21 RT22 RT3 RT5 RT5R RT5RV RT6S RT7 RT8 RT81For Kenwood KPGKPG27D KPG29D KPG48D KPG49 KPG55D KPG56D KPG62D KPG66D KPG69D KPG70D KPG74D KPG75D KPG77D KPG82D KPG87DFor Kenwood THTH D7 TH D7A TH D7AG TH D7E TH F6 TH F6A TH F7 TH F7E TH G71 TH G71A TH G71E TH K2 TH K2A TH K2E TH K2ET TH 21 TH 21AT TH 21BT TH 22 Th 22A TH 22At TH 22E TH 25 TH 26 TH 27 TH 28 TH31AT TH41AT TH41BT TH 42 TH 42A TH 42AT TH 42E TH 45 TH 46 TH 47 TH 48 TH 55 TH 75 TH 77 TH G71 TH 205 TH 215 TH 225 TH 235 TH 235A TH 235E TH 315 TH 415For Kenwood TKTK 208 308 TK 220 320 TK 240 340 TK 240D 340D TK 248 348 TK 250 350 353 TK 260 360 TK 260G 360G TK 270 370 TK 270G 370G TK 272G 372G 373G TK 278G 378G 388GPro Talk TK 430 431 TK 2100 3100Pro Talk TK 2102 3102Pro Talk TK2207 TK3207 TK 2160 3160TK 980 2000 2107 2160 2178 2207 2307 2312 2360 2402V 3000 3107 3160 3178 3207 3207G 3230XLS 3307 3312 3360 3402U 7302 H 8302 H TK U100 D240 D340 D740 D840 TK 5210 G 5310 G 5410 5410D 5220 5320TK D740H D740 D840H D840 5720 5820For KenwoodNXNX 5200 5300 5400 200